Container for liquid



March 12, 1963 T. R. BAXTER ETAL CONTAINER FOR LIQUID Filed June 2, 19593 Sheets-Sheet 1 if m nim INVENTORS THOMAS R. BAXTER MICHAEL M. STUKANEATTORNEYS.

March 12, 1963 T. R. BAXTER El'AL CONTAINER FOR LIQUID Filed June 2,1959 s Sheets-Sheet 2 5 INVENTORS THOMAS R. BAXTER g MICHAEL M. STUKANEArm/vim.

T. R. BAXTER ETAL CONTAINER FOR LIQUID March 12, 19,63

3 Sheets-Sheet 3 Filed June (2, 1959 INVENTORS THOMAS R. BAXTER MICHAELM. STUKANE ATTORNEm United States Patent Ofiice York Filed June 2, 1959,Ser. No. 817,601 3 Claims. (Cl. 222105) The invention relates to acontainer for liquids. The container is one which is especially adaptedfor use in the shipment of milk and as a dispenser for the milk inrestaurants and homes.

Containers heretofore used for the shipment and dispensing of milk inbulk have been quite generally made of metal and have included specialvalve or stopper devices to provide for the attachment of dispensingspouts by the user. Apparently those concerned with the problem ofdesigning containers to fulfill the shipping and dispensing functionshave not been able to discover any practical way of doing the jobwithout employing this rather expensive and heavy type of equipment. Ithas been an object of our invention to provide a less expensive, singleuse or throw-away type of container, and onewhich can be shipped todairies in compact flat form and easily erected for use.

1 According to our invention, the container comprises a carton formed ofcorrugated paperboard, fibreboard or other paperboard container stock,means including a removable section in a lower part of a side wall ofthe carton to permit pouring of liquid from the container, and aflexible plastic bag received within the carton and supported by the.walls of the carton. The plasticbag has a sealed spout portion adjacentthe removable section of the sidewall of the carton. This sealed spoutportion is adapted to protrude through the opening in the carton andform a pouring spout extending outwardly at the bottom of the container.The carton has an inclined inner bottom wall formed by a wedge shapedinsert by folding a strip of container stock into tubular form withportions thereof forming a support across a central part of the inclinedbottom so constituted. The plastic bag has an inclined bottom whichaccommodates itself to the inclined inner bottom wall of the carton andprovides a pointed end on the bag to form the spout portion in a mannerwhich adapts it for protrusion through the opening in the carton tocreate an elongated pouring spout under pressure of the liquid withinthe bag as it causes such pointed end to bulge out through the opening.The plastic bag preferably consists of a seamless tube heat sealed inflattened form along its upper and lower edges. Other features andadvantages of our invention will appear in the more detailed descriptionwhich follows.

In the drawings:

FIG. 1 is a face view of a blank for the carton.

FIG. 2 is a face view of the blank for the wedge shaped insert that goesinto the bottom of the carton.

FIG. 3 is a side view of the plastic bag in its initial fiat form beforefilling.

FIG. 4 is a front elevational view of a valve mechanism for the spout ofour container.

FIG. 5 is a detail view in which the valve mechanism .is shown asapplied to our container, the valve being shown in side elevation and acorner of the container in vertical cross section. Here the valve isclosed.

3,081,003 Patented Mar. 12, 1963 FIG. 6 is a detail view similar to FIG.5, valve open. FIG. 7 is a perspective view of our preferred form ofwedge shaped insert.

FIG. 8 is a perspective view of a modified form of- 7 insert.

FIG. 9 is a perspective view of the complete container with the plasticbag filled and sealed, the top flaps of the container open and portionsof the sides of the carton broken away to show inner construction.

. FIG. 10 is a perspective view of the container with the removablesection torn out and the valve mechanism ready to be put in place.

With reference to the drawings, we shall now describe the best modecontemplated by us for carrying out our invention.

In its general arrangement our invention comprises a carton 1 (FIG. 10)formed of paper board container stock, means including a removablesection 3 in a lowerpart of a side wall of the carton to permit pouringofliquid from the container, and a flexible plastic-bag 2 (FIG. 9)received within the carton and supported by the walls of the carton. Theplastic bag has a sealed spout por-' tion 4 adjacent the removablesection and adapted to protrude through the opening provided by removalof such section and to form a pouring spout 5 extending outwardly at thebottom of the container (see FIG. 6). 1

The carton 1 which forms a part of our container may conveniently be ofthe type commonly referred to as a regular slotted container, the blankfor which is shown in FIG. 1, consisting of four side wall panels andclosure flaps at the ends thereof (eight in all). This carton is formedin a conventional manner with cutting and scoring dies producing theslots which outline the closure flaps and the score lines which definethe cdges-ofthe four side wall panels, all as clearly represented inFIG. 1. This blank is folded about the median score line 30 to form theflat folded carton and taped together or otherwise secured along themeeting edges 31, 32.

According to our preferred construction, a strong plastic tape 6 issecured to the blank by adhesive means 'in a position to extend aroundthe inside of the carton somewhat above its bottom. In one of thenarrower side walls, a pull tab 7 is outlined by a cut line extendingthrough the container stock. This pull tab is located at a corner of thecarton and adjacent an end portion of the section of tape 6 whichextends across the wall of the carton between the upper end portions oftear lines 8 defining the removable section 3. Tear lines 8 are suitablyformed by a series of slits, the slits serving to sever the tape at theends of the removable section as at 9, whereby the section of the tapewhich extends between end portions of the tear lines can be pulled freewhen torn out in the operation of releasing the removable section (seeFIG. 10) In the particular construction shown, the removable section 3comprises a part of the side Wall 10 and an adjoining inner end flap 11of the carton. Alternatively, the removable section may consist simplyof a circular punch-out section to receive the marginal collar 39 of avalve mechanism to which we shall refer later.

The wedge shaped insert is preferably formed by folding a strip ofcontainer stock (FIG. 2) as follows (FIG. 7): inwardly from one end ofan inclined panel 12 as at 13, thence upwardly to form a centralsupportingwall 14 and thence outwardly and downwardly on the incline asat 15; downwardly from the other end of the inclined panel 12 as at 16,thence inwardly at 17, thence upwardly to form a central supporting wall18 adjacent the first, thence outwardly and upwardly on the incline asat 19, and thence downwardly at 20 to the bottom. The inclined innerbottom wall formed by panel 12 preferably has its lower corners 21 bentupwardly for cooperation with the spout portion of the plastic bag inshaping such portion into an elongated pouring spout (see FIG. 10). Theupwardly bent corners 21 are formed in the blank (FIG. 2) by providingthe projecting portions 22, cut lines 23 and fold lines 24. With thisconstruction the step of placing the wedge shaped insert into the cartoncauses the projecting parts 22 to strike the side walls of the carton,lifting corners 21 into the position shown in FIGS. 7, 9 and 10, andthese corners are effectively held in their inclined positions throughthe contact with the side walls of the carton so as to form a strongsupport for the weight of the filled bag. The central supporting walls14 and 18 may if desired be fastened together as by means of metalstaples 25.

In the modified construction shown in FIG. 8, the bent corners 21 of theFIG. 7 construction are omitted and the two tubular parts of the insertin lieu of being fastened by the metal staples 25 are held together by asuitable interlocking tongue and groove at 26.

The polyethylene bag 2 is initially in the form of a seamless flatsterile tube hermetically heat sealed along its upper and lower edges at27 and 29. During the filling operation, the bag is pierced by thefilling nozzle. Any entrained air is extruded from the top of the bag,after which the filling opening pierced into the bag by the nozzle isheat sealed, forming a complete hermetically sealed container for themilk or other liquid contents. The heat sealed lower edge 29 is inclinedat an angle to the axis of the tube. This construction accommodates thefilled bag to the inclined inner bottom wall of the carton as may beseen in FIG. 9, and further provides a pointed end on the bag to formthe spout portion 4 in a manner which specially adapts it for protrusionthrough the opening provided by removal of section 3 to create theelongated pouring spout (FIG. 6) under pressure of the liquid within thebag as it causes such pointed end to bulge out through the opening.

In use the carton 1 is set up at the dairy with the bottom flaps securedtogether by gluing (except for removable inner end flap 11), stapling,or both. The bag 2 is then inserted, filled, and the opening 28 sealed,the top flaps then being closed and secured, ready for shipment. At therestaurant or other place of use, pull tab 7 is torn away, and section 3removed and discarded. Under the pressure of the contained milk, thepointed corner or spout portion of the plastic bag will burst outthrough the opening thus provided. Then if desired a suitable valvemechanism may be attached to the container for controlling thedispensing action of the container. In FIGS. 4, 5 and 6, we have shownone suitable type of valve mechanism which may be employed. As thismechanism is not considered to form a part of our present invention, itwill be described only in general terms as consisting of a face plate 33to which is secured a toggle mechanism 34, operating handle 35, pressurebar 36 and a resilient pad 37- against which the spout 5 of the bag ispressed by the pressure bar 36 to close the spout. FIG. 5 shows theclosed position of the valve, FIG. 6 the opened position. The mechanismas shown further includes an opening 38 having a marginal collar 39adapted to enter a portion of the opening in the carton, and a lowerflange 40 adapted to extend underneath the wedge shaped bottom insert ofthe carton and the lower wall thereof. At or near the upper end of faceplate 33 are provided inwardly and upwardly extending prongs 41 whichcan be hooked into the side of the carton when the valve mechanism isput into place. The manner of applying the valve mechanism to thecontainer is illustrated in FIG. 10. After the prongs 41 have beeninserted, the lower end of the face plate 33 is swung downwardly andinwardly against the side of the carton to close the opening therein. Asthis is done the protruding spout portion 4 of the plastic bag isinserted through the opening 38 of the face plate and drawn outwardly.Then the tip of the spout portion is placed over the resilient pad 37and the pressure bar 36 brought against it in the manner shown in FIG.5. Now the tip 42 of the spout portion is severed as along the line 43(see FIG. 3) and removed. To dispense the contents it is now necessarymerely to pull out the operating handle 35 of the valve mechanism sothat the contents may flow freely through the spout 5. When the handle35 is returned to the position shown in FIG. 5, the flow will be cutoff. After the container has been emptied, the valve mechanism isremoved and is ready to be applied to another full container. The oldcontainer including the carton and the plastic bag, may be thrown awayso that there is no necessity for re-shipment of empty containers as hasgenerally been required with the expensive metal containers commonlyused heretofore.

The terms and expressions which we have employed are used in adescriptive and not a limiting sense, and we have no intention ofexcluding such equivalents of the invention described as fall within thescope of the claims.

We claim:

1. A container for liquids comprising a paperboard carton and a flexibleplastic bag therein having at least one pointed corner defining aself-forming pouring spout, a removable section extending across thelower part of a side wall of the carton, said removable section beingarranged in a position completely supporting said pointed corner in acollapsed condition, a wedge shaped insert positioned in the bottom ofthe carton to support the flexible bag in a manner to direct liquidcontent therein toward said pointed corner, said insert having aninclined upper portion and a vertical support for the inclined portionpositioned below and intermediate the inclined extremities thereof,whereby upon release of the removable supporting section, said pointedcorner will be self-propelled by the liquid content so as to protrudethrough the opening provided by such release of the removable supportingsection and provide a self-formed pouring spout extending outwardly atthe bottom of the container.

2. A container for liquids comprising a paperboard carton and a flexibleplastic bag therein having at least one pointed corner defining aself-forming pouring spout, a removable section extending across thelower part of a side wall of the carton, said removable section beingarranged in a position completely supporting said pointed corner in acollapsed condition, a wedge shaped insert positioned in the bottom ofthe carton to support the flexible bag in a manner to direct liquidcontent therein toward said pointed corner, said insert having aninclined upper portion and a vertical support for the inclined portionpositioned below and intermediate the inclined extremities thereof, andthe lower corners of said inclined portion being bent upwardly, wherebyupon release of the removable supporting section, said pointed cornerwill be self-propelled by the liquid content so as to protrude throughthe opening provided by such release of the removable supporting sectionand provide a self-formed pouring spout extending outwardly at thebottom of the container.

3. A container for liquids comprising a paperboard carton and a flexibleplastic bag therein having at least one pointed corner defining aself-forming pouring spout, a removable section extending across thelower part of a side wall of the carton, said removable section beingarranged in a position completely supporting said pointed corner in acollapsed condition, spaced vertically extending slits defining thesides of the removable section, a horizontally extending tape secured tothe inner side of said carton and intersecting the upper ends of saidslits to define the top of said removable section, a wedge shaped insertpositioned in the bottom of the carton to support the flexible bag in amanner to direct liquid content therein toward said pointed corner, andsaid insert having an inclined upper portion and a vertical support forthe inclined portion positioned below and intermediate the inclinedextremities thereof, whereby upon release of the removable supportingsection, said pointed corner will be self-propelled by the liquidcontent so as to protrude through the opening provided by such releaseof the removable supporting section and provide a self-formed pouringspout extending outwardly at the bottom of the container.

References Cited in the file of this patent UNITED STATES PATENTS984,981 Tuor Feb. 21, 1911 6 FitzGerald June 1, 1920 Bogren Apr. 25,1933 Carr June 15, 1943' Goodyear May 9, 1944 Smith Aug. 3, 1948 Carsonet al Feb. 16, 1954 Bonnie Apr. 22, 1958 Randall Feb. 3, 1959 Voege eta1 May 26, 1959 Winstead Oct. 4, 1960

1. A GRAPPLE FOR FISHING DRILL BITS FROM OIL WELLS COMPRISING: ANUPRIGHT CYLINDRICAL BARREL, THREE PAIR OF RIBS EXTENDING ON THE OUTSIDEOF SAID BARREL AXIALLY THEREOF, EACH OF SAID PAIR OF RIBS HAVING A SLOTTHEREBETWEEN, A BOLT EXTENDING ACROSS FROM EACH RIB TO THE RIB OPPOSITETHE SLOT, AN ARM EXTENDING AXIALLY OF SAID BARREL IN EACH SLOT, SAIDBOLT EXTENDING THROUGH A HOLE IN SAID ARM, A FOOT PORTION OF SAID ARMEXTENDING BELOW THE LIMITS OF SAID BARREL, A SHANK END OF THE ARMEXTENDING UP, A SPRING FOR EACH ARM, EACH SPRING BIASING THE SHANK ENDOF THE ARM AWAY FROM THE BARREL SO THAT THE FOOT PORTION IS BIASEDINWARD, A CAM ON THE EXTREME FOOT END OF SAID ARMS, A CLAW ABOVE THE CAMON EACH FOOT PORTION; SO THAT AS THE GRAPPLE IS LOWERED OVER A BIT, THECAMS SPREAD THE ARMS AND FIT THEREOVER, AND WHEN THE GRAPPLE IS RAISEDTHE CLAW ENGAGES THE BIT TO LIFT IT WITH THE GRAPPLE, AND A MEANS FORCAUSING A JET OF FLUID TO WASH OVER THE BIT.